Air-feeding device.



No. 7n,6a|. Patented 06h21, |902.

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'M FEEDING DEVICE. (Application led Mar. 29, 1902.)V

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UNITED STATnsPA-TENT OFFICE.

WILLIAMSASSE, OF CHICAGO, ILLINOIS.

AIR-,FEEDING DEVICE.

SPECIFICATION forming part ofr Letters Patent N o. 711,681, dated October 21, 1902. Application filed 29, 1 902'. SerialNo. 100,509. (No model.)

To aM whom, t may concern..-

Beit known that I, WILLIAM SAssIraciti-l fication.

This invention relates to improvements in air-feeding devices to be used in stoves, furnaces, and the like; and it consists in certain peculiarities of the construction, novel arrangement, and operation of the various parts thereof, as will be hereinafter more fully set forth and specifically claimed.

The principal object of my invention is to provide an air-feeding device which shall be simple and inexpensive in construction, strong, durable, and easily applied to a stove or furnace, and by means of which more perfect combustion will be obtained, thereby economizing in the amount of :fuel used.

Other objects and advantages of the invention will be disclosed in the subjoined description and explanation. f

In order to enable others skilledv in the art a stove, showing an air-feeding device emi bodying my invention located in the fire-box thereof and ready for operation. Fig. 2 is a plan sectional view taken on line 2 2 of Fig.

1, showing the outer shell or cylinder of the stove provided With sliding doors, but with the fire-brick and the air-feeder removed. Fig.

3 is a fragmental View in elevation of the,

stove-cylinder, showing one of the sliding doors thereon and the opening which it closes. Fig. 4t is a plan view of the device, showing a portion of the upper plate thereof broken 6 is a view, partly in elevation and partly in section, taken on line 6 6 of Fig. 4 looking in the direction indicated by the arrows and showing the openings in the concentric bands or rings to register with the opening or door -of. :the stveor furnace; and Fig. 7is a sectional view of aportion of the device,'show ing a slight modification in its construction.

*Similarletters refer tolike `parts throughout the different views of lthe drawings.

c A represents a stove, which inthe present f instance is shown as `being cylindrical in shape; but it may be of any other suitable form andis provided in its lower portion with agrate a and is lined with fire-brick a' on its interior, as usual, to form a fire-box.

` The stove or cylinder A is provided in its wall with anopening or door B, through which the fuel may be passed into the fire-box. Located horizontally within the fire-box and near the upper portion of the opening or door B is my air-feeding device, which comprises a vbottom plate C of the proper size and shape to iit within the stove or furnace when used in connection therewith and provided with a central opening c, surrounded by an annular flange c', which extends upwardly a short distance, as is clearly shown in Figs. l and 6 of the drawings. The plate Cis also provided onits upper surface, near its periphery, with a flange c2, against which the outer ring or band will rest. Betweenthe flanges c' and c2 the plate C isforniedwith a series of openings c3, havingflangescwhich extendupwardly. Locatedon the upper surface of the plate C are a series of perforated :bands or rings D, D', 'and D2, eachof which has an opening d to register with the upper portion of the opening B in the stove or furnace. The band D is preferably located against the inner surface of the flange c2 on the bottom plate, while the band D' is located ou the outer surface of the flanges c4, sur-v rounding the openings c3 in said plate, and the band D2 is located against the inner surface of said iianges, which serve to support IOO may be otherwise suitably supported. The cylinder or stove A is provided with a number of openings e', located between the top and bottom plates of the device, as will be clearly understood by reference to Fig. 1 of the drawings. These openings maybe closed by means of sliding doors E, which are located between parallel ribs e2 on the outer surface of the cylinder A or stove.

In Fig. 7 of the drawings I have shown a modication in the construction of the device, which consists in making the intervening ring or band D3 ilnperforate or solid and shorter in height than the rings or bands D' and D2, as will be clearly understood by reference to said ligure.

From the foregoing and by reference to the drawings it will be readily understood and clearly seen that as the smoke or unconsumed particles of carbon rises from the fire on the grate Within the stove or furnace it will pass through the openings c and c3 in the lower plate and in its passage will be thoroughly mixed with the air admitted through the openings e in the stove or cylinder, thus aording a new and plentiful supply of oxygen, thereby causing more perfect combustion. As the air enters the openings e' in the stove or cylinder it will pass through the perforations e3 of the various rings or bands and mingle with the smoke or unconsumed carbon and will pass out through the central opening in the upper plate. When the modified construction shown in Fig. 7 is employed, the air will first pass through the perforations of the outer band or ring and will strike the imperforate or solid band or ring D3 and pass over the top of the same and then through the perforations of the inner band or ring, as is apparent.

While I have shown the device provided with three circular bands or rings and as applied to a stove, yet I do not desire to be limited to the number of bands or rings, as I may employ one or more and may make them of other shape than circular and may use the device in connection with a stove or furnace or boiler-furnace Without departing from the spirit of my invention.

Having thus fully described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. In an air-feeding device for stoves and the like, the combination withl a bottom plate having a central opening and a number of Openings between said opening and the outer edge of the plate, upwardly-extending flanges around the intermediate openings, a series of bands located on the upper surface of said plate and having Ways for the passage of air, and a top plate located on the top of said bands and provided with a central opening, substantially as described.

2. In an air-feeding device for stoves and the like, the combination with a bottom plate having a central opening and a number of openings provided with upwardly-extending flanges located between said cent-ral opening and the edge of the plate, a series of bands having small perforations and located on the upper surface of said plate at distances apart, one of said bands resting against the outer surfaces of the said flanges and another one of said bands resting against the inner surface of said flanges, and a top plate located on the upper edge of said bands and having a central opening, substantially as described.

VILLIAM SASSE.

Witnesses:

CHAs. C. TILLMAN, A. GUsTAFsoN. 

